现代制造工程2010年第7期
仪器仅表/检测/监控
巨胎液压硫化机应力测试与有限元分析
黄柳钧，岑大兵
（桂林电子科技大学机电工程学院，桂林541004）
摘要：介绍188"巨胎液压硫化机的基本结构和工作原理，结合传统的应变电测法确定贴片与温度补偿方案；给出具体实施的应力测试方法，并对该硫化机合模机构进行合模应力测试。测试结果表明：最大拉应力发生在第12根合模杆的0° 位置，大小为94.5MPa。由于加工误差造成各合模杆在0°与180°位置的应力相差较大，但整个合模机构能够安全承载，满足实际工作要求，这说明主要承载机构具有足够的抗拉强度。通过ANSYS有限元分析软件对合模机构做有限元计算分析，找出了硫化机实际工作时的应力分布情况，验证了硫化机的安全可靠性，证明合模机构在工作时承受拉伸和弯曲
的组合载荷作用；对比实验结果与计算出的应力分布情况，二者吻合较好，验证了计算的正确性。关键词：液压硫化机；应力测试；应变电测法；ANSYS软件；有限元分析
中图分类号：TM930文献标识码：A文章编号：1671—3133(2010)07—0126—04
Stress-testandfinite element analysisforthe giant-type hydraulic vulcanizing machine
HUANG Liu-jun,CEN Da-bing
(School of Mechanical & Electrical Engineering,Guilin University of
Electronic & Technology,Guilin 541004,Guangxi,China)
Abstract; Introduced the basic structure and working principle for the 188-inch giant-tire hydraulic vulcanizing machine, combi-ning to the traditional strain electrie testing method,fixed patch and temperature compensation plans ;the implementation of stress test method was given,and the matched molds stress test for the mode-locking structure of vulcanizing machine was conducted. Test results showed that the maximum stress was happened in the position of zero degree of No, 12 of mode-locking rod, and its value was 94. 5MPa, Due to processing errors,it caused larger stress difference between in the zero degree position and one hun-dred eighty degree position for every mode-locking rod,but the entire mode-locking structure was loaded safely,satisfied the actual work requirement, and that meant the main loaded structure had enough tensile strength. Through the ANSYS soft,the finite ele-ment analysis was carried out for the mode-locking structure of vulcanizing machine,the stress distributions during the actual vul-canisation condition was found, this verified the reliability and safety of it and proved that the mode-locking structure loaded com-bination loads( tension and bending) during the actual vulcanization condition;comparing the experiment result with the stress-test result,they have verified the calculating correct results.
saagaeasteee
引言 0
应力测试是机械工程测试技术中应用最普遍的测试方法1"2]，在对工程结构进行安全性与可靠性分析时，需要进行应力测试，了解结构的应力分布规律，为分析构件的破坏原因以及结构的优化提供科学的理论依据，同时对新产品的研发也具有一定的指导意义。
。桂林市企业横向课题（CD09038X） 126万方数据
轮胎定型硫化机是一种重要的橡胶机械，主要用于空心轮胎的外胎硫化和定型(34)。按传动方式来分有：机械式和液压式两类。由于机械式硫化机与液压式硫化机各有优点，目前液压硫化机在我国主要硫化机生产厂家也已基本系列化，硫化轮胎的规格越来越大。笔者承担了对某橡胶机械厂最新研制生产出的我国目前最大硫化直径的硫化机进行应力应变测试的任务。现以该188"巨胎液压硫化机为研究对象，首